HBASE-8732  HFileBlockDefaultEncodingContext isn't thread-safe but is used by all readers,
            breaks column encoding
HBASE-8961  Make TestReplicationQueueFailover less integration-y by splitting it up


git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504300 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8965 TestRemoteAdmin.testClusterStatus fails; DISABLING TEST

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504306 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8957 TestDrainingServer. testDrainingServerWithAbort fails; ADDENDUM

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504308 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7952 Remove update() and Improve ExplicitColumnTracker performance (Raymond Liu)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504310 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8965 TestRemoteAdmin.testClusterStatus fails

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504320 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8960: TestDistributedLogSplitting.testLogReplayForDisablingTable fails sometimes

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504321 13f79535-47bb-0310-9956-ffa450edef68
Placeholders for migration

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1504323 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd